C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/52, 260/304.7
C09B 57/00 (2006.01) D06L 3/12 (2006.01)
Patent
CA 1091676
Abstract of the Disclosure Novel 3-phenyl-7-(v-triazol-2-yl)-coumarins of the formula Image wherein R represents hydrogen, unsubstituted or substituted alkyl, alkenyl, alkanyol, aroyl, aralkyl, alkoxycarbonyl, carbamoyl or v-epoxyalkyl, the rings A, B and C being optionally substituted with further non-chromophoric substitu- ents, processes for their preparation as well as a process for optically brightening organic material on using said compounds are disclosed.
274603
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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